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Full Discussion: Help with awk - variable
Top Forums Shell Programming and Scripting Help with awk - variable Post 302970071 by RudiC on Friday 1st of April 2016 11:23:16 AM
Old 04-01-2016
As you don't assign FS (the field separator), the default (multiple white space) is taken. Thus $1 is always the entire line, "red" is not found, and the else branch of your if construct is taken. color is assigned yellow, a variable that is not set and thus "contains" the empty string. Which then is put out.
Why do you split $0 into array a which is never used?

Please be aware that awk doesn't need cat; awk '...' fruits will do.

Last edited by RudiC; 04-01-2016 at 12:28 PM..
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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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